name: Formatter

on:
  workflow_dispatch:
  push:
    branches:
      - main
  pull_request:
    types: [opened, reopened, synchronize]

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  formatter:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: psf/black@stable